The Prince Tribute Show "Purple Reign" is coming to Rochester. The production originated in Las Vegas 20 years ago. The North American tour includes a stop at the Auditorium Theatre on May 25 at 8 p.m. Tickets for the show go on sale at 10 a.m. on Friday. They are available at Ticketmaster.com, the Auditorium box office and by phone at (800) 745-3000.